AgsMidiSmfUtil: Advanced Gtk+ Sequencer Audio Reference Manual

AgsMidiSmfUtil

AgsMidiSmfUtil — MIDI SMF buffer util

Stability Level

Stable, unless otherwise indicated

Functions

AgsMidiSmfUtil *	ags_midi_smf_util_alloc ()
void	ags_midi_smf_util_free ()
AgsMidiSmfUtil *	ags_midi_smf_util_copy ()
guint	ags_midi_smf_util_get_varlength_size ()
void	ags_midi_smf_util_put_varlength ()
guint	ags_midi_smf_util_get_varlength ()
void	ags_midi_smf_util_put_int16 ()
void	ags_midi_smf_util_get_int16 ()
void	ags_midi_smf_util_put_int24 ()
void	ags_midi_smf_util_get_int24 ()
void	ags_midi_smf_util_put_int32 ()
void	ags_midi_smf_util_get_int32 ()
void	ags_midi_smf_util_put_header ()
guint	ags_midi_smf_util_get_header ()
void	ags_midi_smf_util_put_track ()
guint	ags_midi_smf_util_get_track ()
void	ags_midi_smf_util_put_key_on ()
guint	ags_midi_smf_util_get_key_on ()
void	ags_midi_smf_util_put_key_off ()
guint	ags_midi_smf_util_get_key_off ()
void	ags_midi_smf_util_put_key_pressure ()
guint	ags_midi_smf_util_get_key_pressure ()
void	ags_midi_smf_util_put_change_parameter ()
guint	ags_midi_smf_util_get_change_parameter ()
void	ags_midi_smf_util_put_pitch_bend ()
guint	ags_midi_smf_util_get_pitch_bend ()
void	ags_midi_smf_util_put_change_program ()
guint	ags_midi_smf_util_get_change_program ()
void	ags_midi_smf_util_put_change_pressure ()
guint	ags_midi_smf_util_get_change_pressure ()
void	ags_midi_smf_util_put_sysex ()
guint	ags_midi_smf_util_get_sysex ()
void	ags_midi_smf_util_put_quarter_frame ()
guint	ags_midi_smf_util_get_quarter_frame ()
void	ags_midi_smf_util_put_song_position ()
guint	ags_midi_smf_util_get_song_position ()
void	ags_midi_smf_util_put_song_select ()
guint	ags_midi_smf_util_get_song_select ()
void	ags_midi_smf_util_put_tune_request ()
guint	ags_midi_smf_util_get_tune_request ()
void	ags_midi_smf_util_put_sequence_number ()
guint	ags_midi_smf_util_get_sequence_number ()
void	ags_midi_smf_util_put_smtpe ()
guint	ags_midi_smf_util_get_smtpe ()
void	ags_midi_smf_util_put_tempo ()
guint	ags_midi_smf_util_get_tempo ()
void	ags_midi_smf_util_put_time_signature ()
guint	ags_midi_smf_util_get_time_signature ()
void	ags_midi_smf_util_put_key_signature ()
guint	ags_midi_smf_util_get_key_signature ()
void	ags_midi_smf_util_put_sequencer_meta_event ()
guint	ags_midi_smf_util_get_sequencer_meta_event ()
void	ags_midi_smf_util_put_text_event ()
guint	ags_midi_smf_util_get_text_event ()
guint	ags_midi_smf_util_get_undefined ()
void	ags_midi_smf_util_put_midi_channel_prefix ()
guint	ags_midi_smf_util_get_midi_channel_prefix ()
void	ags_midi_smf_util_put_end_of_track ()
guint	ags_midi_smf_util_get_end_of_track ()
guchar *	ags_midi_smf_util_seek_message ()
guint	ags_midi_smf_util_decode ()

Types and Values

enum	AgsMidiSmfUtilMtcQuarterFrameMessageType
enum	AgsMidiSmfUtilSmtpeFrameRate

Object Hierarchy

    GBoxed
    ╰── AgsMidiSmfUtil

Includes

#include <ags/audio/midi/ags_midi_smf_util.h>

Description

Utility functions for MIDI SMF buffers.

Functions

ags_midi_smf_util_alloc ()

AgsMidiSmfUtil *
ags_midi_smf_util_alloc ();

Allocate MIDI util.

Returns

the newly allocated AgsMidiSmfUtil.

[transfer full]

Since: 6.0.0

ags_midi_smf_util_free ()

void
ags_midi_smf_util_free (AgsMidiSmfUtil *midi_smf_util);

Free MIDI util.

Parameters

midi_smf_util

the MIDI util

Since: 6.0.0

ags_midi_smf_util_copy ()

AgsMidiSmfUtil *
ags_midi_smf_util_copy (AgsMidiSmfUtil *midi_smf_util);

Copy MIDI util.

Parameters

midi_smf_util

the MIDI util

Returns

the newly allocated AgsMidiSmfUtil.

[transfer full]

Since: 6.0.0

ags_midi_smf_util_get_varlength_size ()

guint
ags_midi_smf_util_get_varlength_size (AgsMidiSmfUtil *midi_smf_util,
                                      gint varlength);

Retrieve the size needed to store the variable length.

Parameters

midi_smf_util	the MIDI util
varlength	the variable length

Returns

the size needed to be allocated

Since: 6.0.0

ags_midi_smf_util_put_varlength ()

void
ags_midi_smf_util_put_varlength (AgsMidiSmfUtil *midi_smf_util,
                                 guchar *buffer,
                                 gint varlength);

Put the variable lenght value to buffer .

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
varlength	the value to put

Since: 6.0.0

ags_midi_smf_util_get_varlength ()

guint
ags_midi_smf_util_get_varlength (AgsMidiSmfUtil *midi_smf_util,
                                 guchar *buffer,
                                 gint *varlength);

Get the variable lenght value from buffer .

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
varlength	the return location

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_int16 ()

void
ags_midi_smf_util_put_int16 (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint val);

Put signed 16 bit integer.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
val	the integer

Since: 6.0.0

ags_midi_smf_util_get_int16 ()

void
ags_midi_smf_util_get_int16 (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *val);

Get signed 32 bit integer.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
val	return location of the integer.	[out]

Since: 6.0.0

ags_midi_smf_util_put_int24 ()

void
ags_midi_smf_util_put_int24 (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint val);

Put signed 24 bit integer.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
val	the integer

Since: 6.0.0

ags_midi_smf_util_get_int24 ()

void
ags_midi_smf_util_get_int24 (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *val);

Get signed 24 bit integer.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
val	return location of the integer.	[out]

Since: 6.0.0

ags_midi_smf_util_put_int32 ()

void
ags_midi_smf_util_put_int32 (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint val);

Put signed 32 bit integer.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
val	the integer

Since: 6.0.0

ags_midi_smf_util_get_int32 ()

void
ags_midi_smf_util_get_int32 (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *val);

Get signed 32 bit integer.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
val	return location of the integer.	[out]

Since: 6.0.0

ags_midi_smf_util_put_header ()

void
ags_midi_smf_util_put_header (AgsMidiSmfUtil *midi_smf_util,
                              guchar *buffer,
                              gint chunk_length,
                              gint format,
                              gint track_count,
                              gint division);

Puts the midi header.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
chunk_length	header chunk length
format	either 0, 1 or 2.
track_count	the number of tracks
division	timing division

Since: 6.0.0

ags_midi_smf_util_get_header ()

guint
ags_midi_smf_util_get_header (AgsMidiSmfUtil *midi_smf_util,
                              guchar *buffer,
                              gint *chunk_length,
                              gint *format,
                              gint *track_count,
                              gint *division);

Gets the midi header

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
chunk_length	the return location of header chunk length.	[out]
format	the return location of format either 0, 1 or 2.	[out]
track_count	the return location of the number of tracks.	[out]
division	the return location of timing division.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_track ()

void
ags_midi_smf_util_put_track (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint chunk_length);

Put track.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
chunk_length	track chunk length

Since: 6.0.0

ags_midi_smf_util_get_track ()

guint
ags_midi_smf_util_get_track (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *chunk_length);

Get track

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
chunk_length	the return location of track chunk length.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_key_on ()

void
ags_midi_smf_util_put_key_on (AgsMidiSmfUtil *midi_smf_util,
                              guchar *buffer,
                              gint delta_time,
                              gint channel,
                              gint key,
                              gint velocity);

Puts the given values to buffer with appropriate channel message.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	valid channels from 0-15
key	valid keys to play 0-128
velocity	the key dynamics

Since: 6.0.0

ags_midi_smf_util_get_key_on ()

guint
ags_midi_smf_util_get_key_on (AgsMidiSmfUtil *midi_smf_util,
                              guchar *buffer,
                              gint *delta_time,
                              gint *channel,
                              gint *key,
                              gint *velocity);

Get the key-on message from buffer .

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
key	the return location of key.	[out]
velocity	the return location of velocity.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_key_off ()

void
ags_midi_smf_util_put_key_off (AgsMidiSmfUtil *midi_smf_util,
                               guchar *buffer,
                               gint delta_time,
                               gint channel,
                               gint key,
                               gint velocity);

Puts the given values to buffer with appropriate channel message.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	valid channels from 0-15
key	valid keys to play 0-128
velocity	the key dynamics

Since: 6.0.0

ags_midi_smf_util_get_key_off ()

guint
ags_midi_smf_util_get_key_off (AgsMidiSmfUtil *midi_smf_util,
                               guchar *buffer,
                               gint *delta_time,
                               gint *channel,
                               gint *key,
                               gint *velocity);

Get the key-off message from buffer .

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
key	the return location of key.	[out]
velocity	the return location of velocity.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_key_pressure ()

void
ags_midi_smf_util_put_key_pressure (AgsMidiSmfUtil *midi_smf_util,
                                    guchar *buffer,
                                    gint delta_time,
                                    gint channel,
                                    gint key,
                                    gint pressure);

Puts the given values to buffer with appropriate channel message.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	valid channels from 0-15
key	valid keys to play 0-128
pressure	the key dynamics

Since: 6.0.0

ags_midi_smf_util_get_key_pressure ()

guint
ags_midi_smf_util_get_key_pressure (AgsMidiSmfUtil *midi_smf_util,
                                    guchar *buffer,
                                    gint *delta_time,
                                    gint *channel,
                                    gint *key,
                                    gint *pressure);

Get the key-pressure message from buffer .

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
key	the return location of key.	[out]
pressure	the return location of pressure.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_change_parameter ()

void
ags_midi_smf_util_put_change_parameter
                               (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                gint delta_time,
                                gint channel,
                                gint control,
                                gint value);

Put change parameter.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	channel
control	the control
value	the value

Since: 6.0.0

ags_midi_smf_util_get_change_parameter ()

guint
ags_midi_smf_util_get_change_parameter
                               (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                gint *delta_time,
                                gint *channel,
                                gint *control,
                                gint *value);

Get change parameter.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
control	the return location of the control.	[out]
value	the return location the value.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_pitch_bend ()

void
ags_midi_smf_util_put_pitch_bend (AgsMidiSmfUtil *midi_smf_util,
                                  guchar *buffer,
                                  gint delta_time,
                                  gint channel,
                                  gint transmitter);

Put pitch bend.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	channel
transmitter	the transmitter

Since: 6.0.0

ags_midi_smf_util_get_pitch_bend ()

guint
ags_midi_smf_util_get_pitch_bend (AgsMidiSmfUtil *midi_smf_util,
                                  guchar *buffer,
                                  gint *delta_time,
                                  gint *channel,
                                  gint *transmitter);

Get pitch bend.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
transmitter	the return location the transmitter signed 14 bit integer.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_change_program ()

void
ags_midi_smf_util_put_change_program (AgsMidiSmfUtil *midi_smf_util,
                                      guchar *buffer,
                                      gint delta_time,
                                      gint channel,
                                      gint program);

Put change program.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	channel
program	the program

Since: 6.0.0

ags_midi_smf_util_get_change_program ()

guint
ags_midi_smf_util_get_change_program (AgsMidiSmfUtil *midi_smf_util,
                                      guchar *buffer,
                                      gint *delta_time,
                                      gint *channel,
                                      gint *program);

Get change program.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
program	the return location of the program.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_change_pressure ()

void
ags_midi_smf_util_put_change_pressure (AgsMidiSmfUtil *midi_smf_util,
                                       guchar *buffer,
                                       gint delta_time,
                                       gint channel,
                                       gint pressure);

Put change pressure.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
channel	channel
pressure	the pressure

Since: 6.0.0

ags_midi_smf_util_get_change_pressure ()

guint
ags_midi_smf_util_get_change_pressure (AgsMidiSmfUtil *midi_smf_util,
                                       guchar *buffer,
                                       gint *delta_time,
                                       gint *channel,
                                       gint *pressure);

Get change pressure.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
channel	the return location of channel.	[out]
pressure	the return location of the pressure.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_sysex ()

void
ags_midi_smf_util_put_sysex (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint delta_time,
                             guchar *data,
                             gint length);

Put sysex.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
data	the data
length	the data's length

Since: 6.0.0

ags_midi_smf_util_get_sysex ()

guint
ags_midi_smf_util_get_sysex (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *delta_time,
                             guchar **data,
                             gint *length);

Get sysex.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
data	the return location of data.	[out]
length	the return location of length.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_quarter_frame ()

void
ags_midi_smf_util_put_quarter_frame (AgsMidiSmfUtil *midi_smf_util,
                                     guchar *buffer,
                                     gint delta_time,
                                     gint message_type,
                                     gint values);

Put quarter frame.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
message_type	the message type
values	the values

Since: 6.0.0

ags_midi_smf_util_get_quarter_frame ()

guint
ags_midi_smf_util_get_quarter_frame (AgsMidiSmfUtil *midi_smf_util,
                                     guchar *buffer,
                                     gint *delta_time,
                                     gint *message_type,
                                     gint *values);

Get quarter frame.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
message_type	the return location of the message type.	[out]
values	the return location of the values.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_song_position ()

void
ags_midi_smf_util_put_song_position (AgsMidiSmfUtil *midi_smf_util,
                                     guchar *buffer,
                                     gint delta_time,
                                     gint song_position);

Put song position.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
song_position	the song position

Since: 6.0.0

ags_midi_smf_util_get_song_position ()

guint
ags_midi_smf_util_get_song_position (AgsMidiSmfUtil *midi_smf_util,
                                     guchar *buffer,
                                     gint *delta_time,
                                     gint *song_position);

Get song position.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
song_position	the return location of the song position.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_song_select ()

void
ags_midi_smf_util_put_song_select (AgsMidiSmfUtil *midi_smf_util,
                                   guchar *buffer,
                                   gint delta_time,
                                   gint song_select);

Put song select.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
song_select	the song select

Since: 6.0.0

ags_midi_smf_util_get_song_select ()

guint
ags_midi_smf_util_get_song_select (AgsMidiSmfUtil *midi_smf_util,
                                   guchar *buffer,
                                   gint *delta_time,
                                   gint *song_select);

Get song select.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
song_select	the return location of the song select.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_tune_request ()

void
ags_midi_smf_util_put_tune_request (AgsMidiSmfUtil *midi_smf_util,
                                    guchar *buffer,
                                    gint delta_time);

Put tune request

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information

Since: 6.0.0

ags_midi_smf_util_get_tune_request ()

guint
ags_midi_smf_util_get_tune_request (AgsMidiSmfUtil *midi_smf_util,
                                    guchar *buffer,
                                    gint *delta_time);

Get tune request.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_sequence_number ()

void
ags_midi_smf_util_put_sequence_number (AgsMidiSmfUtil *midi_smf_util,
                                       guchar *buffer,
                                       gint delta_time,
                                       gint sequence);

Put sequence number.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
sequence	the sequence

Since: 6.0.0

ags_midi_smf_util_get_sequence_number ()

guint
ags_midi_smf_util_get_sequence_number (AgsMidiSmfUtil *midi_smf_util,
                                       guchar *buffer,
                                       gint *delta_time,
                                       gint *sequence);

Get sequence number.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
sequence	the return location of the sequence.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_smtpe ()

void
ags_midi_smf_util_put_smtpe (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint delta_time,
                             gint rr,
                             gint hr,
                             gint mn,
                             gint se,
                             gint fr);

Put smtpe timestamp.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
rr	frame rate
hr	hour
mn	minute
se	second
fr	frame number

Since: 6.0.0

ags_midi_smf_util_get_smtpe ()

guint
ags_midi_smf_util_get_smtpe (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *delta_time,
                             gint *rr,
                             gint *hr,
                             gint *mn,
                             gint *se,
                             gint *fr);

Get smtpe timestamp.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
rr	the return location of frame rate.	[out]
hr	the return location of hour.	[out]
mn	the return location of minute.	[out]
se	the return location of second.	[out]
fr	the return location of frame number.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_tempo ()

void
ags_midi_smf_util_put_tempo (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint delta_time,
                             gint tempo);

Put tempo.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
tempo	the tempo

Since: 6.0.0

ags_midi_smf_util_get_tempo ()

guint
ags_midi_smf_util_get_tempo (AgsMidiSmfUtil *midi_smf_util,
                             guchar *buffer,
                             gint *delta_time,
                             gint *tempo);

Get tempo.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
tempo	the tempo

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_time_signature ()

void
ags_midi_smf_util_put_time_signature (AgsMidiSmfUtil *midi_smf_util,
                                      guchar *buffer,
                                      gint delta_time,
                                      gint nn,
                                      gint dd,
                                      gint cc,
                                      gint bb);

Put time signature

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
nn	numerator
dd	denominator
cc	clocks
bb	beats

Since: 6.0.0

ags_midi_smf_util_get_time_signature ()

guint
ags_midi_smf_util_get_time_signature (AgsMidiSmfUtil *midi_smf_util,
                                      guchar *buffer,
                                      gint *delta_time,
                                      gint *nn,
                                      gint *dd,
                                      gint *cc,
                                      gint *bb);

Get time signature.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
nn	the return location of numerator.	[out]
dd	the return location of denominator.	[out]
cc	the return location of clocks.	[out]
bb	the return location of beats.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_key_signature ()

void
ags_midi_smf_util_put_key_signature (AgsMidiSmfUtil *midi_smf_util,
                                     guchar *buffer,
                                     gint delta_time,
                                     gint sf,
                                     gint mi);

Put key signature.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
sf	flats or sharps
mi	1 equals minor or 0 means major

Since: 6.0.0

ags_midi_smf_util_get_key_signature ()

guint
ags_midi_smf_util_get_key_signature (AgsMidiSmfUtil *midi_smf_util,
                                     guchar *buffer,
                                     gint *delta_time,
                                     gint *sf,
                                     gint *mi);

Get key signature.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
sf	the return location of flats or sharps.	[out]
mi	the return location of minor or major.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_sequencer_meta_event ()

void
ags_midi_smf_util_put_sequencer_meta_event
                               (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                gint delta_time,
                                gint len,
                                gint id,
                                gint data);

Put sequencer meta event.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
len	the length of data
id	the manufacturer id
data	the data

Since: 6.0.0

ags_midi_smf_util_get_sequencer_meta_event ()

guint
ags_midi_smf_util_get_sequencer_meta_event
                               (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                gint *delta_time,
                                gint *len,
                                gint *id,
                                gint *data);

Get sequencer meta event.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
len	the return location of the length of data.	[out]
id	the return location of the manufacturer id.	[out]
data	the return location of the data.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_put_text_event ()

void
ags_midi_smf_util_put_text_event (AgsMidiSmfUtil *midi_smf_util,
                                  guchar *buffer,
                                  gint delta_time,
                                  gchar *text,
                                  gint length);

Put text event.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
text	the text
length	the length

Since: 6.0.0

ags_midi_smf_util_get_text_event ()

guint
ags_midi_smf_util_get_text_event (AgsMidiSmfUtil *midi_smf_util,
                                  guchar *buffer,
                                  gint *delta_time,
                                  gchar **text,
                                  gint *length);

Get text event.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
text	the return location of the text.	[out]
length	the return location of the length.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_get_undefined ()

guint
ags_midi_smf_util_get_undefined (AgsMidiSmfUtil *midi_smf_util,
                                 guchar *buffer,
                                 gint *delta_time);

Get undefined.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]

Returns

the number of bytes read.

Since: 6.16.18

ags_midi_smf_util_put_midi_channel_prefix ()

void
ags_midi_smf_util_put_midi_channel_prefix
                               (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                gint delta_time,
                                gint midi_channel);

Put MIDI channel prefix.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information
midi_channel	the MIDI channel

Since: 6.16.18

ags_midi_smf_util_get_midi_channel_prefix ()

guint
ags_midi_smf_util_get_midi_channel_prefix
                               (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                gint *delta_time,
                                gint *midi_channel);

Get MIDI channel prefix.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]
midi_channel	the return location MIDI channel.	[out]

Returns

the number of bytes read.

Since: 6.16.18

ags_midi_smf_util_put_end_of_track ()

void
ags_midi_smf_util_put_end_of_track (AgsMidiSmfUtil *midi_smf_util,
                                    guchar *buffer,
                                    gint delta_time);

Put end of track.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	timing information

Since: 6.0.0

ags_midi_smf_util_get_end_of_track ()

guint
ags_midi_smf_util_get_end_of_track (AgsMidiSmfUtil *midi_smf_util,
                                    guchar *buffer,
                                    gint *delta_time);

Get end of track.

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
delta_time	the return location of timing information.	[out]

Returns

the number of bytes read.

Since: 6.0.0

ags_midi_smf_util_seek_message ()

guchar *
ags_midi_smf_util_seek_message (AgsMidiSmfUtil *midi_smf_util,
                                guchar *buffer,
                                guint message_count,
                                gint *delta_time);

Seek MIDI messages from buffer

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the buffer to seek
message_count	seek count messages
delta_time	the return location of current delta time.	[out]

Returns

the buffer at offset at message_count ahead

Since: 6.0.0

ags_midi_smf_util_decode ()

guint
ags_midi_smf_util_decode (AgsMidiSmfUtil *midi_smf_util,
                          guchar *buffer,
                          snd_seq_event_t *event);

Decode event to buffer

Parameters

midi_smf_util	the AgsMidiSmfUtil
buffer	the MIDI buffer
event	the ALSA sequencer event

Returns

the bytes written

Since: 6.0.0

Types and Values

enum AgsMidiSmfUtilMtcQuarterFrameMessageType

Members

AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_FRAME_NUMBER_LSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_FRAME_NUMBER_MSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_SECONDS_LSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_SECONDS_MSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_MINUTES_LSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_MINUTES_MSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_HOURS_LSB
AGS_MIDI_SMF_UTIL_MTC_QUARTER_FRAME_HOURS_MSB

enum AgsMidiSmfUtilSmtpeFrameRate

Members

AGS_MIDI_SMF_UTIL_SMTPE_FRAME_RATE_24_FPS
AGS_MIDI_SMF_UTIL_SMTPE_FRAME_RATE_25_FPS
AGS_MIDI_SMF_UTIL_SMTPE_FRAME_RATE_30_FPS
AGS_MIDI_SMF_UTIL_SMTPE_FRAME_RATE_30_FPS_DROP_FRAME